How can the interface \Throwable be utilized to handle errors in PHP functions like exception_handler?

When handling errors in PHP functions like exception_handler, the interface \Throwable can be utilized to catch both exceptions and errors. By implementing this interface, you can create a custom error handling function that can handle both exceptions and errors in a consistent manner. This allows you to centralize error handling logic and improve the overall robustness of your code. 

function exception_handler($exception) {
    echo "Uncaught exception: " , $exception->getMessage(), "\n";
}

function error_handler($errno, $errstr, $errfile, $errline) {
    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
}

set_exception_handler('exception_handler');
set_error_handler('error_handler');

// Example code that may throw an exception or trigger an error
try {
    // Code that may throw an exception
    throw new Exception('An example exception');
} catch (Exception $e) {
    exception_handler($e);
}

// Code that may trigger an error
trigger_error('An example error', E_USER_ERROR);

Keywords

\Throwable error handling exception_handler PHP functions interface

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